According to your chronograph, it took the car 22 seconds to go from turn 1 to turn 2. 22 seconds lines up with 180 hash mark on your tachymeter bezel, so the car was averaging 180 km/h between turn 1 and turn 2.
If you’re measuring elapsed times on distances shorter than 1 mile or 1 kilometer, you need to do a bit of math to get the average speed. Let’s say you’re watching a stock car race at Thunder Road in Barre, VT. The track is only a quarter-mile.
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